Add another guy to the list: Dexter McCoil, Tulsa.
About 6'4 plus, 220 plus.
I'll be looking for him to run in the mid 4'5 at his pro day.
I'll post a picture of him later when I have a chance.
Long arm, good built.
17 or 18 career INTs.

There are some obvious draw backs with a guy that tall as his steps can be too long (easier to run past a play) or tackling too high (here his long arms help.)

I've watched 4 of his games, not bad at all; a sleeper here - dunno for how long.

Watch the game against BYU in 2011 (BYU is a good passing team), he had 3 INTs (one was called back due to an offside).
There are 3 other games on youtube:
Arkansas, a pretty good passing team;
UCF, in the CUSA championship;
Iowa St, in the Liberty Bowl.

He can be a little over-aggressive at times, but that's what a ball-hawk does sometimes.

He can play at different positions: 2 deep, one deep (showing good range here), in the box; covering a slot or a TE (I'm a little concern with him being able to flip his hips, but he doesn't look all that stiff). Wish I can see him at a work-out to check out these concerns; but overall, he looks like another dark horse to me.